A post insulator wire fixing clamp

Abstract

The application relates to the technical field of wire fixing, in particular to a column type insulator wire fixing clamp which comprises a clamp main body with an opening design; an adjusting mechanism arranged at the end of the clamp main body and used for adjusting the angle of a clamping plate according to stress conditions; and a locking mechanism connected with the adjusting mechanism and used for locking the wire state after adjustment; the clamp main body is located at the top end of a column type insulator, and the clamp main body is fixed at the top end of the column type insulator through a hoop; the angle stress condition of the wire is adjusted, the wire naturally goes to the force point, the force point of the wire is not forcibly changed, the wire is effectively prevented from being forced to artificially bind the column type insulator due to environmental factors such as angles and slopes, and the loosening phenomenon caused by processes or quality is easily and quickly prevented, so that the safety and reliability of wire operation can be greatly improved.

Description

Technical Field

[0001] This invention relates to the field of conductor fixing technology, and in particular to a post-type insulator conductor fixing clamp. Background Technology

[0002] In medium-voltage power distribution systems, overhead lines are widely fixed using post-type insulators or suspension insulators. However, under special terrain conditions (such as corners, slopes, concave and convex profiles), the traditional method of binding conductors with single-core aluminum wire has significant shortcomings. These shortcomings include: at corners and locations with significant slope changes, the conductor's stress becomes complex, increasing the difficulty of binding; inconsistent skill levels among workers lead to poor or non-standard binding results, causing the binding wire to easily loosen or break; long-term exposure to air causes the binding wire to oxidize, reducing its mechanical strength and further increasing the risk of loosening; loose binding wires can cause excessive conductor sag, increasing the risk of phase-to-phase short circuits or grounding faults, and potentially causing electric shock accidents.

[0003] Especially in special locations (such as corners and steep slopes), the first insulator, as the main support point, bears the greatest stress and is prone to breakage or wire breakage. Once the wire loosens, it can also cause the conductor to come into contact with crossarms, poles, or other iron accessories, resulting in a grounding fault and power outage. Summary of the Invention

[0004] The purpose of this section is to outline some aspects of embodiments of the invention and to briefly describe some preferred embodiments. Simplifications or omissions have been made in this section, as well as in the abstract and title of the invention, to avoid obscuring the purpose of these documents; however, such simplifications or omissions are not intended to limit the scope of the invention.

[0005] Given that in special sections, the first insulator, as the main support point, bears the greatest stress, and uneven stress can easily lead to breakage or wire breakage, the present invention is proposed.

[0006] Therefore, the purpose of this invention is to provide a post-type insulator conductor fixing clamp.

[0007] To solve the above-mentioned technical problems, the present invention provides the following technical solution: including a wire clamp body, including a clamp, wherein the wire clamp body is fixed to a post insulator by the clamp;

[0008] An adjustment mechanism is provided at the end of the wire clamp body to adjust the angle of the clamp plate according to the force on the wire.

[0009] A locking mechanism, connected to the adjustment mechanism, is used to lock the adjusted wire state. The wire clamp body is rectangular, and the top of the wire clamp body is provided with an arc-shaped groove. The wire clamp body is assembled and disassembled by a clamp.

[0010] As a preferred embodiment of the post-type insulator conductor fixing clamp of the present invention, the clamp body is located at the top of the post-type insulator, and the clamp body is fixed to the top of the post-type insulator by a clamp.

[0011] As a preferred embodiment of the post-type insulator conductor fixing clamp of the present invention, wherein: the clamp extends vertically upward to form a semi-circular fixing bracket, the top of the fixing bracket is T-shaped, and the two semi-circular clamps are fixed by bolts.

[0012] As a preferred embodiment of the post-type insulator conductor fixing clamp of the present invention, the clamp body includes a pressure plate connected to a fixing bracket, and the groove is located at the top of the pressure plate.

[0013] In a preferred embodiment of the post-type insulator conductor fixing clamp of the present invention, the adjusting mechanism includes a connector disposed at the bottom end of the pressure plate, and the semi-cylinder extended from the connector is a pull plate.

[0014] As a preferred embodiment of the post-type insulator conductor fixing clamp of the present invention, the adjusting mechanism further includes a fixing groove disposed at the top of the pull plate.

[0015] As a preferred embodiment of the post-type insulator conductor fixing clamp of the present invention, the locking mechanism includes a first pressure bar and a second pressure bar, the first pressure bar being located at the top of the pressure plate, and the second pressure bar being located at the top of the pull plate.

[0016] As a preferred embodiment of the post-type insulator conductor fixing clamp of the present invention, the first pressure strip, the second pressure strip, the pressure plate, and the pull plate are all provided with hanging ears on both sides.

[0017] In a preferred embodiment of the post-type insulator conductor fixing clamp of the present invention, the clamp is made of stainless steel.

[0018] In a preferred embodiment of the post-type insulator conductor fixing clamp of the present invention, the clamp is fixed in the annular groove at the top of the post-type insulator by bolts, and the diameter of the groove and the fixing groove is smaller than the diameter of the conductor.

[0019] The beneficial effects of this invention are as follows: This invention replaces the binding method of overhead conductor post insulators in special geographical locations such as corners, slopes, concave shapes, and convex shapes by using a clamp body, adjustment mechanism, and locking mechanism. It changes the traditional single-core aluminum wire binding of overhead conductor post insulators to bolt fixing, and adjusts it according to the conductor angle and stress conditions, allowing the conductor to run naturally without forcibly changing the conductor's stress point. This effectively prevents the conductor from becoming loose due to process or quality issues caused by environmental factors such as angle and slope, which force manual binding of post insulators. This greatly improves the safety and reliability of conductor operation. Attached Figure Description

[0020] To more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings used in the following description of the embodiments will be briefly introduced. Obviously, the drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0021] Figure 1 This is a schematic diagram of the binding of a post-type insulator conductor before modification, according to the present invention.

[0022] Figure 2 This is a schematic diagram of the overall structure of a post-type insulator conductor fixing clamp according to the present invention.

[0023] Figure 3 This is a front view of a post-type insulator conductor fixing clamp according to the present invention.

[0024] Figure 4 This is a schematic diagram of the disassembled structure of a post-type insulator conductor fixing clamp according to the present invention.

[0025] Figure 5 This is a cross-sectional view of a connector for a post-type insulator conductor fixing clamp according to the present invention.

[0026] Figure 6 This is a bottom view of a post-type insulator conductor fixing clamp according to the present invention.

[0027] Figure 7 This is a schematic diagram of the rotation range of the pull plate of a post-type insulator conductor fixing clamp according to the present invention.

[0028] Figure 8 This is a schematic diagram illustrating various embodiments of the groove in a post-type insulator conductor fixing clamp according to the present invention.

[0029] Reference numerals: 100, wire clamp body; 200, adjusting mechanism; 300, locking mechanism; 101, pressure plate; 102, groove; 103, clamp; 104, fixed bracket; 201, connector; 202, fixed wire groove; 203, hanging ear; 204, pull plate; 201a, arc-shaped sphere; 201b, sphere; 301, first pressure strip; 302, second pressure strip; D1, arc-shaped groove; C1, semi-circular arc; h1, first arc; h2, second arc. Detailed Implementation

[0030] To make the above-mentioned objects, features and advantages of the present invention more apparent and understandable, the specific embodiments of the present invention will be described in detail below with reference to the accompanying drawings.

[0031] Many specific details are set forth in the following description in order to provide a full understanding of the invention. However, the invention may also be practiced in other ways different from those described herein, and those skilled in the art can make similar extensions without departing from the spirit of the invention. Therefore, the invention is not limited to the specific embodiments disclosed below.

[0032] Secondly, the term "one embodiment" or "embodiment" as used herein refers to a specific feature, structure, or characteristic that may be included in at least one implementation of the present invention. The phrase "in one embodiment" appearing in different places in this specification does not necessarily refer to the same embodiment, nor is it a single or selective embodiment that is mutually exclusive with other embodiments.

[0033] Secondly, the present invention is described in detail with reference to the schematic diagrams. When detailing the embodiments of the present invention, for ease of explanation, the cross-sectional views illustrating the device structure may be partially enlarged, not according to the usual scale. Furthermore, the schematic diagrams are merely examples and should not limit the scope of protection of the present invention. In addition, actual fabrication should include three-dimensional spatial dimensions of length, width, and depth.

[0034] Currently, medium-voltage distribution networks widely use overhead installations, especially in mountainous areas. Conventional overhead lines are fixed using post-type insulators or suspension insulators. Conductor installation is commonly done on straight poles, but there are often angles, slopes, concave shapes, and convex shapes in the geographical locations. For these different pole types in various geographical environments, the conductors are conventionally fixed to the post-type insulators using 4 to 6 square millimeter single-core aluminum wire for binding (e.g., ...). Figure 1 (As shown). When encountering special geographical locations such as corners, slopes, concave or convex shapes, the stress on the conductor often changes. In addition, if the workers lack skills or are not careful when binding, the binding effect will be poor or not standardized. Furthermore, when the conductor is running for a long time, the binding wire will be exposed to the air and undergo oxidation, which will affect its mechanical strength. Under the action of force, the binding wire is very likely to loosen or break, resulting in the conductor running away.

[0035] First, when encountering special geographical locations, the conductors are pulled in the opposite direction under stress, which can easily cause the binding wires to loosen, fall off, or break. This can lead to the conductors detaching from the post insulators, resulting in excessive sag. Under certain wind conditions, this can cause momentary short circuits between conductor phases, or the conductors coming into contact with poles, crossarms, etc., causing short circuits or grounding faults and power outages. Second, excessive conductor sag can easily lead to insufficient safe distances between the conductors and the ground or objects, which can easily cause electric shock accidents to people in the community.

[0036] Secondly, due to the physical characteristics of conductors in special locations, the insulators are installed horizontally, and the conductors run in a straight line. After the first insulator serves as a support point, the second insulator is suspended in the air. Even if external force is used to forcibly bind the conductor to the insulator, the first insulator will experience the maximum stress, posing a risk of breakage to the insulator and breakage of the binding wire. Finally, if the binding wire loosens, it will come into contact with iron accessories (crossarms, poles, etc.), causing a ground fault and power outage. All of these situations will lead to unpredictable power outages, reduce power supply reliability, and severely impact users' normal electricity use.

[0037] To address the aforementioned issues, this study developed binding methods between poles and post insulators for medium-voltage overhead conductors in various environments, including corners, slopes, concave and convex shapes. These methods effectively solve the problem of existing binding methods easily loosening the line in special locations such as corners, slopes, concave and convex shapes, leading to issues like line slippage, slippage, conductor slack, and excessive sag, ultimately resulting in frequent conductor faults and power outages. The following implementation examples are provided.

[0038] Example 1, referring to Figure 2 and Figure 4 This is the first embodiment of the present invention. This embodiment provides a post-type insulator conductor fixing clamp. Through the flexible adjustment of the adjustment mechanism 200, the conductor can adapt to changes in different angles and slopes, thereby maintaining the conductor in a natural direction and reducing stress concentration in the conductor. The locking mechanism 300 further ensures the stability and safety of the conductor.

[0039] Specifically, the clamp body 100 has an open design, which facilitates quick installation and disassembly of the clamp body 100 through the clamp 103, while ensuring a tight fit between the clamp body 100 and the post insulator. The clamp body 100 is rectangular, and the clamp body 100 has an arc-shaped groove 102 inside.

[0040] Adjustment mechanism 200, located at the end of clamp body 100, is used to adjust the angle of the clamp plate according to the force applied; and,

[0041] The locking mechanism 300 is connected to the adjusting mechanism 200 and is used to lock the state of the wire after adjustment.

[0042] It should be noted that when the clamp body 100 is fixed to the post insulator by the clamp 103, the conductor needs to be placed on the clamp body 100 first. Then, the locking mechanism 300 initially limits the conductor without locking it. When the conductor is pulled, the force on the conductor will cause the adjustment mechanism 200 to adjust accordingly because the locking mechanism 300 and the clamp body 100 limit the conductor. After the adjustment is completed, the locking mechanism 300 will lock and fix the conductor.

[0043] Example 2, refer to Figures 1-6 This is the second embodiment of the present invention. Unlike the previous embodiment, the clamp body 100 is located at the top of the post insulator, and the clamp body 100 is fixed to the top of the post insulator by the clamp 103.

[0044] Specifically, the clamp 103 extends vertically upward to form a semi-circular fixing bracket 104. The top of the fixing bracket 104 is T-shaped, and the two semi-circular clamps 103 are fixed by bolts, which facilitates installation in the annular groove at the top of the column insulator. Since the two clamps 103 are combined into one and fixed in the annular groove at the top of the column insulator by bolts, one end of the fixing bracket 104 is connected to the clamp 103, and the end of the fixing bracket 104 away from the clamp 103 is connected to the clamp body 100. Circular holes are opened at both ends of the T-shaped structure at the top of the fixing bracket 104 as holes for fixing bolts, which facilitates the connection and fixing of the fixing bolts to the clamp body 100. The bolts are galvanized single-ended bolts.

[0045] The wire clamp body 100 includes a pressure plate 101 connected to a fixed bracket 104. The top of the pressure plate 101 is provided with a groove 102. The pressure plate 101 has a rectangular columnar structure and an arc-shaped groove 102 adapted to the wire type is opened on the plane.

[0046] Example 3, referring to Figures 3-6 This is the third embodiment of the present invention. Unlike the previous embodiment, the adjustment mechanism 200 includes a connector 201 disposed at the bottom end of the pressure plate 101, and the semi-cylindrical structure extended from the connector 201 is a pull plate 204.

[0047] Specifically, the adjustment mechanism 200 also includes a fixed wire groove 202 disposed at the top of the pull plate 204.

[0048] The locking mechanism 300 includes a first pressure bar 301 and a second pressure bar 302. The first pressure bar 301 is located at the top of the pressure plate 101, while the second pressure bar 302 is located at the top of the pull plate 204. The first pressure bar 301 and the pressure plate 101, and the second pressure bar 302 and the pull plate 204, fix the wire by pressing against each other.

[0049] It should be noted that the outer walls of the first pressure strip 301, the second pressure strip 302, the pressure plate 101, and the pull plate 204 are all provided with hanging ears 203; in addition, the first pressure strip 301 and the pressure plate 101 are manufactured in the same way, except that the first pressure strip 301 lacks a connecting piece 201. The first pressure strip 301 and the pressure plate 101 are connected by two fastening bolts to the bolt hanging ears 203 at the corresponding positions of the first pressure strip 301 and the pressure plate 101 respectively. Since the holes of the hanging ears 203 are designed with reinforcing ribs, they are prevented from breaking open when tightening the bolts, thus avoiding affecting the fastening effect.

[0050] Among them, the clamp 103 is made of stainless steel.

[0051] It should be noted that the connector 201 is located between the pull plate 204 and the pressure plate 101, and an arc-shaped sphere 201a is provided at the connection between the connector 201 and the pressure plate 101, such as... Figure 5 As shown, the top of the arc-shaped sphere 201a has an arc-shaped groove D1. The arc-shaped groove D1 gradually bends and tilts from the groove 102, thus slowly transitioning the wire into the fixed wire groove 202. The arc-shaped groove D1 connects with the groove 102 to support the wire. Since the arc-shaped groove D1 is arc-shaped, the arc support of the wire by the arc-shaped groove D1 can effectively disperse the stress generated by the wire. At the same time, the interior of the arc-shaped sphere 201a has a hollow groove to accommodate the sphere 201b. Since the maximum diameter of the sphere 201b is larger than the outlet of the arc-shaped sphere 201a, the sphere 201b will not fall out of the hollow groove when rotating.

[0052] Example 4, refer to Figures 2-7 This is the fourth embodiment of the present invention. Unlike the previous embodiments, this embodiment provides a clamping method, which uses the post-type insulator wire fixing clamps of embodiments 1 to 3 above to ensure that the wire can be stably fixed in complex geographical environments, reduce the risk of loosening caused by environmental changes, and improve the overall safety and reliability of the wire.

[0053] First, fix the two clamps 103 to the top annular groove of the column insulator with bolts; ensure that the semi-circular brackets are correctly aligned, and then install the fixing bracket 104 so that the fixing bracket 104 is perpendicular to the clamp 103 and the two fixing brackets 104 are opposite to each other. At the same time, a pressure plate 101 is installed on the end of the fixing bracket 104 away from the clamp 103.

[0054] The wire is placed in the groove 102 between the pressure plate 101 and the first pressure strip 301 and the fixed wire groove 202 between the pull plate 204 and the second pressure strip 302. Since the inner diameter of the groove 102 and the fixed wire groove 202 is smaller than the diameter of the wire, the pressure strip is installed first to limit the wire, ensuring the wire runs naturally and the wire is subjected to uniform force.

[0055] The direction of the tension force during conductor installation and fixing can be adjusted by the connector 201, allowing the pull plate 204 to be adjusted according to the actual force direction of the conductor. Therefore, the conductor can be adjusted to a suitable stress position, and the range of movement of the pull plate 204 is... Figure 6 It can be seen that, Figure 6 The middle arrow rotates between 0 and 360 degrees, while... Figure 7 It can be seen that the swing range of the pull plate 204 from left to right and up to down is between 0 degrees and 90 degrees. Since the diameter of the groove 102 and the fixed wire groove 202 is smaller than the diameter of the wire, the locking mechanism 300 can effectively avoid local stress concentration after fixing the wire, and ensure that the force on the wire is evenly distributed on the entire wire clamp structure.

[0056] Example 5, refer to Figure 8 This is the fifth embodiment of the present invention. Unlike the previous embodiment, this embodiment provides a groove 102 with flared ends, specifically manifested in three forms. Figure 8 The groove 102 on the left is the first type of groove. Figure 8 The groove 102 in the middle is the second type of expression. Figure 8 The groove 102 on the right is the third type of expression.

[0057] Specifically, in this embodiment, the semi-circular groove 102 is set as a semi-circular arc C1 in the middle and a semi-flare shape at both ends. The surface between the flare shape and the semi-circular arc C1 is smooth. Due to external influences such as birds landing or strong winds, the tension generated by the wire during use will cause the pull plate 204 to move accordingly. Therefore, there is a certain angle difference between the pull plate 204 and the pressure plate 101.

[0058] In this embodiment, the first type of groove 102 has an excessively straight angle, resulting in excessive stress on the contact surface between the wire and the groove 102.

[0059] In this embodiment, the second type of groove 102, during use, has a large slope between the first arc h1 and the second arc h2 at the turning point between the trumpet shape and the semicircular arc C1. Figure 8 The middle pressure plate 101 is compared to Figure 8 The pressure plate 101 on the left reduces the length of the semicircular arc C1 and increases the transition arc. Due to the small transition arc, the transition is unnatural, resulting in a small range of adjustment for conductor stress.

[0060] In this embodiment, the third type of groove 102 has a gentler slope between the first arc h1 and the second arc h2 during use, compared to... Figure 8 The middle pressure plate 101, Figure 8 The pressure plate 101 on the right further reduces the length of the semicircular arc C1, allowing for a larger range of adjustable conductor stress.

[0061] It should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention and are not intended to limit it. Although the present invention has been described in detail with reference to preferred embodiments, those skilled in the art should understand that modifications or equivalent substitutions can be made to the technical solutions of the present invention without departing from the spirit and scope of the technical solutions of the present invention, and all such modifications or substitutions should be covered within the scope of the claims of the present invention.

Claims

1. A post-type insulator conductor fixing clamp, characterized in that: include, The clamp body (100) includes a clamp (103) and a pressure plate (101) connected to a fixed bracket (104). The clamp body (100) is fixed to the post insulator by the clamp (103). The clamp body (100) is rectangular. The pressure plate (101) has an arc-shaped groove (102) at the top. The clamp body (100) can be assembled and disassembled by the clamp (103). An adjustment mechanism (200) is disposed at the bottom end of the pressure plate (101) of the wire clamp body (100) and is used to adjust the angle of the pull plate (204) according to the force on the wire. The adjustment mechanism (200) includes a connector (201), a pull plate (204), and a fixing groove (202). One end of the connector (201) is connected to the pressure plate (101), and the other end is connected to the pull plate (204). The connector (201) includes an arc-shaped sphere (201a) and a sphere (201b). The arc-shaped sphere (201a) is further divided into two parts. a) An arc-shaped groove D1 is provided at the top. The arc-shaped groove D1 is bent at an inclination from the groove (102) to the fixed line groove (202) to achieve a smooth connection. The sphere (201b) is accommodated in the empty groove of the arc-shaped sphere (201a) and does not leave the empty groove. The semi-cylindrical structure extended from the connector (201) is a pull plate (204). The pull plate (204) can rotate 360 ​​degrees around the connector (201) and swing up and down and left and right from 0-90 degrees. The fixed line groove (202) is set at the top of the pull plate (204). A locking mechanism (300), connected to the adjusting mechanism (200), is used to lock the adjusted state of the wire. The locking mechanism (300) includes a first pressure bar (301) and a second pressure bar (302). The first pressure bar (301) is located at the top of the pressure plate (101), and the second pressure bar (302) is located at the top of the pull plate (204). The first pressure bar (301) and the second pressure bar (302) work together to realize the operation logic of first limiting the wire by the second pressure bar (302), and then locking the wire by the first pressure bar (301) after the pull plate (204) is adjusted to the appropriate angle.

2. The post-type insulator conductor fixing clamp as described in claim 1, characterized in that: The clamp body (100) is fixed to the top of the post insulator by a clamp (103), and the curvature of the arc groove D1 is adapted to the curvature of the groove (102) and the fixed wire groove (202).

3. A post-type insulator conductor fixing clamp as described in claim 2, characterized in that: The clamp (103) extends vertically upward to form a semi-circular fixing bracket (104). The top of the fixing bracket (104) is T-shaped. The T-shaped structure of the fixing bracket (104) has round holes at both ends for fixing bolts to connect with the wire clamp body (100). The two semi-circular clamps (103) are fixed by bolts. The end of the fixing bracket (104) away from the clamp (103) is connected to the wire clamp body (100).

4. A post-type insulator conductor fixing clamp as described in claim 3, characterized in that: The clamp body (100) includes a pressure plate (101) connected to a fixed bracket (104), and the groove (102) is located at the top of the pressure plate (101).

5. A post-type insulator conductor fixing clamp as described in claim 4, characterized in that: The first pressure strip (301), the second pressure strip (302), the pressure plate (101), and the pull plate (204) are all provided with hanging ears (203) on both sides. The arc-shaped sphere (201a) of the connector (201) is integrally formed with the pressure plate (101), and the sphere (201b) is integrally formed with the pull plate (204).

6. A post-type insulator conductor fixing clamp as described in claim 5, characterized in that: The clamp (103) is made of stainless steel.

7. A post-type insulator conductor fixing clamp as described in claim 6, characterized in that: The clamp (103) is fixed to the annular groove at the top of the column insulator by bolts. The diameter of the groove (102) and the fixing groove (202) is smaller than the diameter of the conductor.

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